Improvement in machine foe supporting tin cans when being soldered



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Be it known that I, ALMONDBRGOKS, of Columbus, in the county of Bartholomew, and State of Indiana, I

have invented anew and useful Improvement in Adjustable Frames or Rests for Supporting Tin Cans while' being Soldered; and I do hereby declarethat the following isA a full, clear, and exact description of thesame, reference being had to the annexed drawings, making part of this specification, in which-- Figure 1 is'a perspective view.

Figure 2 is also a perspective view showing the frame as closed.

Figure 3 is a vertical section. v

The same letters are employed in all the figures in theldcsignation of the same parts.

M v'improvement relates to an adjustable frame or rest for. supporting thel inside of tin cans such as are used forvpreserving fruit, igt-c., while being soldered; and my inventionvconsists4 in the combination and arrange ment ofthe parts by which the frame-may be adjusted and held in position, so that it may be used inxthe manufacture of cans of different diameters. I

The following' description will enable persons skilled in the art to manufacture and apply my improvement to use. v I

.The adjustable frame is composed of pieces A, fitting, when the frameis closed, against one another, as seen iniig.'v 2, forming a compact cylinder r prism, which maybe passed through the hole in the top of the can.' The inner vertical faces of thesevpieices are'inclined, as shown in iig. 3,`and have `out therein longitudinal grooves forming inclined planes, against which' the radial arms of the spiders BB rest. These spiders areV fastened to the tubular shaft C, and as it is pressed down, the arms descending` along the base of the grooves, will force outwardly the frame-pieces from the position, shown in fig. 2, to vthat shown in g. 1. The tubular `shaft slides over a rod, D, 'passing through it, the latter being attached to a circular plate, E, on the upper surface of which the frame-pieces stand. When the tubulai` shaft and spiders are raised, the frame will be contracted by the elastic bands FF passing around and countersunk within the pieces A. These bands may he a spiral springr or India rubber. A series of notches or a screw-thread cut in the rod D, at D', willrrcceive the .point of a pawl, G, which is pivoted fin a' collar, G', fastened tothe shaft C, the4 head of the pawl passing through ahole in said tubular shaft. The head of the pawl is pressed against the rod' by a spring. When the tubular shaft C is pressed downwards, thespider will expand theframe A to the diameter required, holding it in any desired position bythe action of the pawl, which prevents the tubular shaft from rising on the rod. When the can has been soldered, by merelypressing on the pawl, thevhooked head may bediscngaged from the notches in the rod, and the contraction of the elasticibands will cause the spider to be forced up in the inclined grooves, and close the frame-pieces to the position shown `in fig. 2.

What I claim as my invention, and desire to secure by Letters Patent, is-

The combination of the adjustable frame-pieces A with inclined faces and grooves A', the spider B, tubular shaft C, internal rod D, plate E, elastic bands F, and pan'l-G,-constructed and arranged to operate substantially in the manner and for the purposeset forth.

In testimony whereof, I have signed my name to this specication in thc presence of two subscribing witnesses.

ALMOND BROOKS.

Witnesses:

R. MASON, D. P. HonncwAY, 

